I've not seen such a thing. Even Fiber Optic speeds are generally in the 5 - 20+ Mbps range.. If you're truly getting 400 Mbps then the 100 Mbps may be a limit of your ethernet card.. Or maybe you mean Kbps.. In our area, our "slow/half speed" DSL is 785 Kbps and we go up from there.. For example, my home currently uses 3000 Kbps (3.0 Mbps) and some are quite a bit faster..
Still, you want to get the maximum out of your connection so I'll ask:
1. Which operating system are you using on the laptop and are you connecting it through a "wired" connection?
2. Have you visited the Windows update site and installed all the Windows Updates that apply?
3. Have you scanned your computer for malware/spyware/viruses using multiple different tools?
4. If a wired connection, have you tried updating your ethernet drivers on the computer? If a wireless connection, update the wireless adapater.
Hope this helps.
I have high speed DSL (400-600 Mbps) comming into my house on the phone line to a high speed DSL modem which uses an eithernet cable. I had the ATT rep check this. When he hooked his computer up to the line he got 400 Mbps. When I hook up my Toshiba Satellite I get a solid 100 Mbps. When I hook the modem to my Netgear wireless router, my wife gets 400 Mbps on her computer. I can not find what is blocking my computer from getting 400 Mbps.
I have uninstalled all programs from running on my computer and removed all pop-up blockers.
Anyone got any suggestions???